Spreader for telephone-receiver casings.



` P-.f-M. 00X..

l SPREADER FOR TELEPHONE RECEIVER GASINGS.

,APPLIOATION FILED APR. 2a, 1,912. v 1,046,984. y Patented Dec. 10, 1912.

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.To au brama my an extentl as to cause lt-he cap to become loose.

which combinel to form a Unrrnnsra'rns razrnnfr orrion.

` SPREADER FOR TELEPHONE-RECEIVER GASINGS.

Specification of llaetters Patent.. Patented Dp. 10, 1912.

' Appncatmnmea Apri1a3f,'1912 serialneeaaeoe c07we1"n' i i drel, said vmandrelhaving an axial borey2 Be 1t known that I, PIERRE .Cox, la citlhaving an internal coarse screw thread. The l zen of the United States, Vresidinor at Memembers 1, .1 are provided in their opposed ridian, in the county of Bosque anc State of Texas, have invented new and useful Improvements -in Spreaders for ,Telephone-Receiver Casings, of which the lfollowing is a speciiication. y

This invention relates to a device for faces with recesses or sockets 3 for the 'reception of coiled sprinos 4 having terminal eyes 5 for the passage o -pins or tend'through the members at right angles to thereby connecting l approximately the members 1, l resilispreading or expanding'thevhulls or casings ently together. The threaded aperture 2 is ,of telephone receivers, and it has for-its o engaged vby, a conical expanding screw 7 ject to produce a simple and eiiicient device having a thumb pieceor handle 8.

mandrel isreduced ad- 3acent-to the'upper end thereof to form a vlcylindrical portion 9 'adapted to engage the flange or shoulder l10 which is found in telephone' receiver casings of conventional shape, as shown in Fig. 2a

whereby the casing `ma be spread or expanded to lit the threa sof the cap when, for any reason, the casing has shrunk to such The truste-conical A further object of the invention is to produce a spreading device of simple and dura.- ble construction whichv may be conveniently used for the purpose of saving 4receiver casings which would otherwise be discarded.

With these and 'other ends in view which will readily appear as the nature of the invention is better understood, the same consists in the improved construction ,and novel arrangement and combination o parts which will be hereinafter fully described and particularly pointed out in the claim.

In the accompanying drawing has been illustrated a simple and preferred form of the invention, it being, however, understood that vno limitation is necessarily made to the precise structural details therein exhibited,l` but that changes, alterations and modificationswithin'the scopeofthe claim may be resorted to when desired..`

In the drawing-Figure 1 is a perspective view showing the tionally hot weather, the receiver casing and the` cap thereof shrink .to such an extent that the threaded connection between said parts becomes'loose, it has been customary to discard the casing and to provide a new one. By this invention, after removing the cap, the" mandrel is placed within the casing, which latter is previously preferably heated byholding it over a lamp or in any-other convenient manner. By tightening the expanding screw, Athe mandrelwill now be expanded within the' casing, which latter will be correspondinglyexpanded to the requisite dimensions to enable the'cap'to be restored andA to fit snugly on 4 whereby the parts or members of the mandrel are connected will permit said mandrel to expand to any required extent, but the parts will be kept assembled so that no one part will be readily lost oi' displaced.

. The cylindrical portion of the mandrel by fitting against and engaging the shouldered portion .10 of the casing enables the mandrel torbeexp'anded without, displacing it upwardly and outwardly from the casi-ng, as ,will be understood. 4

Having thus described the invention, what is claimed as new, is

A device of the class described consisting of two similar members combining to torni a diametrically divided frustoconical manimproved device vapplied to the 'casing of a. telephone receiver in position for operation. Fig. 2 is a sectional view taken axially through the expanding screw. Fig. 3 is a sideviewof the expanding device detached. Fig. 4 is a bottom plan y view. Fig. is a sectional view vtaken on the line .f3-J) in Fig. 4.

Corresponding parts in are denoted byv like characters of reference.

The improved expanding device is com posed of two similar parts or members 1, ,1- rusto-conical manthe several figures i plugs 6 that ext-he recesses or sockets,y l

WVhen, for any reason, such as in lexcep'- drel having an axial threaded bore, said In testimony whereof I affix rny signature members being provided with recesses in in preseneeof t-Wo Witnesses. their opposed faces, coiled springs seated in 4 PIERRE M C055. said recesses. and having terminal eyes, inv Y tersecting pins engaging the eyes, and a Witnesses:

conical expanding screw engaging the' J. C. Tn'rLii, threaded bore, J. R. PAUL.

- Copies of this patent may be obtained for ve cents each, by addressing ishe Commissioner of Yatents,

Washington, D. C. 

